[timer] A Timer mobject. #manim #animate #decimalnumber #timer

20241119_timer.py

# https://discord.com/channels/581738731934056449/1308355923583963197/1308355923583963197
from manim import *
class Timer(VGroup):
    def __init__(self, starttime=99, countdown=True, run=True):
        super().__init__()
        self.currenttime = starttime
        self.starttime = starttime
        self.countdown   = countdown
        self.dorun         = run
        self.minten = DecimalNumber(0,num_decimal_places=0)
        self.minone = DecimalNumber(0,num_decimal_places=0)
        self.sepminsec = Text(":")
        self.secten = DecimalNumber(0,num_decimal_places=0)
        self.secone = DecimalNumber(0,num_decimal_places=2)
        self.add(self.minten,self.minone,self.sepminsec,self.secten,self.secone)
        self.arrange(RIGHT,buff=0.05)
        self.add_updater(self.updaterf, call_updater=True)
    def stop(self):
        self.dorun = False
    def run(self):
        self.dorun = True
    def reset(self, starttime=None, run=None):
        if starttime is not None:
            self.starttime = starttime
            self.currenttime = starttime
        else:
            self.currenttime = self.starttime
        if run is not None:
            self.dorun = run
    def updaterf(self,mobj,dt):
        if mobj.dorun:
            if mobj.countdown:
                mobj.currenttime -= dt
            else:
                mobj.currenttime += dt
        ctime = mobj.currenttime
        mobj.minten.set_value(int(ctime/600))
        ctime %= 600
        mobj.minone.set_value(int(ctime/60))
        ctime %= 60
        mobj.secten.set_value(int(ctime/10))
        ctime %= 10
        mobj.secone.set_value(ctime)



class stopwatch(Scene):
    def construct(self):
        timer = Timer()

        self.add(timer)
        self.wait(5)
        timer.reset(15, run=False)
        self.wait(5)
        timer.run()
        self.wait(5)
        timer.stop()
        self.wait(5)